The provision of solid feeds to veal calves: I. Growth performance, forestomach development, and carcass and meat quality.

摘要: Growth performance, forestomach de- velopment, and carcass meat quality of veal calves fed a milk replacer diet (Control) were compared to those obtained from the same liquid plus 250 gcalf −1 d dried beet pulp or wheat straw. Three groups 46 Polish Friesian calves, balanced according initial BW, assigned three dietary treat- ments in fattening trial, which lasted 160 d. The provision either solid feed did not affect intake. However, calves' ADG was increased (P < 0.01) only by feeding diet. admin- istration both feeds improved health status; required fewer iron for low hemoglobin needed less medical treatments respiratory gastrointestinal diseases. In comparison Control straw intake throughout period 41 130%, respec- tively. showed higher levels plasma concentra- tions 0.05), whereas blood parameters similar between At slaughter, led empty weights heavier than Controls without reducing dressing percentage. reticuloru- men heaviest pulp, promoted omasal development. ad- ministration resulted better conformation straw, but it had detrimental effect on color, graded as darkest 0.001). Consistent with this result, color darker that because hematin concentration measured at muscle level. No differences observed administration welfare purposes does always prevent production fulfilling standards market. There is straight-forward relationship feed's content "redness" meat, should be related capability use provided roughage.